Philip had no illusions about the stability of the Common Peace, given the turbulent history of the Greek city-states, their competitiveness, and their general reluctance to sacrifice their freedom of action even for the common good. Moreover, he was a Macedonian, from the backwater of the Greek world [...] A Persian offer of 300 talents was privately accepted by Demosthenes, who employed it for purposes compatible with mutual Athenian-Persian interests in thwarting Macedonian ascendancy.